Combined charging and feeding device for gasolene-engines.



. L. W. WITRY. COMBINED CHARGING AND FEEDING DEVICE FOR GASOLENE ENGINES. APPLIOATION um APR. 18, 1910.

979,238. Patented Dec.20,1910.

UNITED STATES PATENT orruon.

LOUIS W. WITRY, 0F WATERLOO, I OWA, ASSIGNO'R TO WATERLOO GASOLINE ENGINE COMPANY, 01 WATERLOO, IOWA.

COMBINED CHARGING- AND FEEDING DEVICE FOR GASOLENE-ENGINES.

Specification of Letters Patent.

Application filed April 18, 1910. Serial N o. 556,032.

lVITRY, a America, and

charging receptacle, and second, to so combine the said adjust-able charging with a regular feeding devicethat the latter will be set automatically to supplying the engine with gasolene vapor as soon as said adjustable charging device has effected its function of providing for the starting thereof.

My invention herein is furthermore designed as an improvement upon the charging and feeding device which was patented by me in the United States of America on October 5, 1909, under Number 935,718.

The aforesaid objects I have accomplished by the means which are hereinafter described and claimed, and which are illustrated in the accompanying drawings, in which:

Figure 1 is a side elevation of a gasoleneengine equipped with my said improved combined adjustable charging means and communicating feeding device. Fig. 2 is an enlarged detail in partial section, with parts shown broken away, of said combined adjustable charging means and communicating feeding apparatus. Fig. 3 is a longitudinal section of the rear part of the engine cylinder, showing the gas inlet chamber and its retractile valve.

Similar numbers refer to similar parts throughout the several views. The engine a rests on a base 35, and has the usual moving parts consisting of the pieton 6, the pitman 33, crank-shaft 86, and a fiy-wheel 34L mounted on said shaft. The compressionchamber 28 of the .cylinder is separated from a rear water-cooling chamber and an adjoining mixing-chamber 8.

A communication bet-ween the compressionand mixing-chambers is effected by means of an inlet-port 30 covered by a retractile valve 29 whose head is within said compression-chamber and is kept ordinarily over and closing said port by means of a tensionspring 26,, the latter beingcoiled about the end of the valve-stem outside of the cylinder and bearing against the latter.

The air and-gas are both introduced into the chamber 8 through an inlet in said cylinder wall into which is inserted the elbow- .coupling 14, and the, latter communicates with both said chamber 8 and thedepending tubeQ, the lower end of the latter being on Patented Dec. 20, 1910.

dinarily open tothe surrounding atinos- .phere. The open lower end of the tube 9 dips within but is spaced away from the bottom and the concentric walls of .the cup 10, the said cup having a small orifice 23 at or near the lower edge of the tube 9. The cup 10 has ,an upwardly-extending sleeve 40 which is movably fitted about the lower portion of the tube 9. Said sleeve has openings .27permittin g communication between said cup 10 and the surrounding atmosphere.

To permit of vertical adjustment of said.

sleeve 40 along the tube 9, an oblique slot.

41 is provided in the sleeve, and a stud 4-2 extends into said slot from the said tube.-

A thumb-nut 43 is movably seated on the tht eaded outer end of said stud, and when tightened against the sleeve is adapted to hold the latter in a desired position of adjustment vertically along said tube. The adjustment is effected by merely turning the sleeve back'orforward over said stud, thus lowering or lifting the cup 10 so as to keep it in. a desired relation to the open lower end of said tube 9. The tube 9 may thus be dipped to varying depths within saidcup .to permit it to also dip into the gasolen-e charge in the cup to. different d1stances to vary the speed of charging or the amount of the initial charge.

Thev numeral 1 designates .a tank for' gasolene whose top should be of sufiicient level of such thetank should be high enough to keep the different parts of the feeding device charged at all times as will be hereinafter described, except that the oil in the tank is always below the level of the valve-chamber 31 to prevent fluid oil being drawn therethrough instead of the vapor merely.

The pipe 3 leads from the tank 1 to a T- coupling 12, and the latter has a communication with an angle check-valve chamber 5,

whose valve 19-operates to prevent the oilabove itfrom returning back into the pipe 3 and tank 1. The stem 13 of said checkvalve moves in. a cylindrical bearing 18 depending from the removable cap 17. The valve-chamber 5 communicates with the valve-chamber 31 by means of an elboW- coupling 37 and pipe 38. The valve-chamher 31 contains a regulating or throttlevalve 15 for the gasolene-vapor, the said valve operated by a hand-wheel 7 to bringit to a desired distance from its seat 16. The valve-chamber 81 communicates with the elbow-coupling let by means of a short pipe 39. A chamber 2 is inserted in the pipe 3 to contain an ordinary stop-cock 25 manually operated by means of a thumbpiece 24-, when it is desired to shut ott the flow of gasolene at times when inspection or repairs of the feeding or charging device is nec rv. A valve-chamber 11 is in con:nuu'ncz'dion with the pipe 3 by way of the T-coupling 12, and contains an ordinary stop-cock 21 adapted to be manually operated by means of the thumb-piece 520. A short nozzle 22 leads from said valve-cham ber 11 to and is adapted to deliver gasolenc into the cup 10 through one of the openings 27,

\Vhen it is desired to operate the engine, the tlynvheel 34: is rotated to draw a charge of mingled gas and air through the port.- 50, chamber 8,.and tube 9. The cup 10 has been previously adjusted vertically to a desired position relative to the lower end of the tube 9, and secured in the adjusted position by the tightening of the thumb-nut l3 against the sleeve 4-0.

to till with" gasolene until the gasolene appears at theoritice 23, when the cock 21 is shut otl. The position of the orifice 23 is such tha '1, it permits the level of gasolene in the cup 10 to rise to the lower edge of the tube 9, the aforesaid adjusting ot' the vertical positionof said cup varying a little the amount of dip otsaid pipe within the cup and its contained gasolene as d sired tor varying the richness of the vapor comprising the initial charge. its by the means described a charge of mingled gas and air drawn into the cylinder, air which enters the openings 27 in said sleev 10 sucked through the gasolene covering the lower The stop-cocks 25 and 21 be- 111;: opened, the cup 10 has been permitted provided with means for the regulation of l l l l edge of the tube 9 and the air is thus properly impregnated to a desired richness with gasolenc vapor. The firing of this preliminary charge sufl'ices to start the engine, which thereafter draws gasoleno vapor through the chambers 8 and 31 from the chamber 5 regularly and automatically.

Provision. is made in the cup 10 for only enough gasolene below the orifice 23 to supply one preliminary charge, and thereafter air only is drawn through the tube 9 from the openings 27 to mix in the-chamber 8 with the vapor of gasolene drawn thereinto from the chambers 31, 5 and the pipe 3.

Having described my invention, what I claim as new, and desire to secure by Letters Patent, 1s:

1. A. combined charging and feeding device for a gasolene engine, composed in combinat-ion with a cylinder and a movable piston therein, said cylinder having an inlet port and retractile means for closing the latter, of a mixing-chamber discharging into said port, a receptacle open to the atmosphere, a tube communicating between said receptacle and said mixing-chamber, means for varying the distance of said receptacle from the lower open end of said tube, :1 sel containing a tiuid hydrocarbtni under a desired amount of head, means of comnnmication between said vessel and said mixing chamber, and between said vessel and said first-mentioned receptacle. and means to;- regulating the level of the hydrocarbon in. said receptacle.

A combined charging and feeding device for a gasolene engine, composed in combinalion with a cylinder and a movable pis-- ion therein, said cylinderhaving an inletport and retractile means for closing the.

latter, of a mixing-chamber discharging into said port, a receptacle open to the atmosphere, a tube comnnmicatingbetween said receptacle and said mixing-chainher, means for varying the distance of said receptacle from the lower open end of said tube, a vessel con taining a fluid hydrocarbon under a desired amount of head, means of communication between said ve; l and said in]ring-chamber said port. a receptacle open to the atmosphere, a tube communicating between said receptacle and said iniXing-chamber, means for varying the distance of said receptacle train the open end oi said tube, said tube having its open end adapted to dip below Signed at \Vaterloo, Iowa, this 31st day of the level the contents of said receptacle, March, 1910. a vessel containing a fluid hydrocarbon under a desired amount of head, means of come 5 munication' between said Vessel and .said Witnesses:

mixing-chamber, and means of communica- -O. D. YOUNG, tion between said vessel and said receptacle. G. G. KENNEDY.

LOUIS W. VVITRY. 

